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If the underlying provider doesn't support BIO_FLUSH, log it only once

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and don't bother trying in the future.

MFC after:	3 days
This commit is contained in:
Pawel Jakub Dawidek 2011-09-28 13:19:47 +00:00
parent 39852ce89e
commit 12daf727f6
4 changed files with 24 additions and 4 deletions
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2
sbin/hastd/hast.h
View File

@ -167,6 +167,8 @@ struct hast_resource {
off_t hr_local_mediasize;
/* Sector size of local provider. */
unsigned int hr_local_sectorsize;
/* Is flushing write cache supported by the local provider? */
bool hr_localflush;
/* Flush write cache on metadata updates? */
int hr_metaflush;

1
sbin/hastd/parse.y
View File

@ -788,6 +788,7 @@ resource_start: STR
curres->hr_provname[0] = '\0';
curres->hr_localpath[0] = '\0';
curres->hr_localfd = -1;
curres->hr_localflush = true;
curres->hr_metaflush = -1;
curres->hr_remoteaddr[0] = '\0';
curres->hr_sourceaddr[0] = '\0';

7
sbin/hastd/primary.c
View File

@ -1304,8 +1304,15 @@ local_send_thread(void *arg)
}
break;
case BIO_FLUSH:
if (!res->hr_localflush) {
ret = -1;
errno = EOPNOTSUPP;
break;
}
ret = g_flush(res->hr_localfd);
if (ret < 0) {
if (errno == EOPNOTSUPP)
res->hr_localflush = false;
hio->hio_errors[ncomp] = errno;
reqlog(LOG_WARNING, 0, ggio,
"Local request failed (%s): ",

18
sbin/hastd/secondary.c
View File

@ -664,7 +664,7 @@ disk_thread(void *arg)
struct hast_resource *res = arg;
struct hio *hio;
ssize_t ret;
bool clear_activemap;
bool clear_activemap, logerror;
clear_activemap = true;
@ -702,6 +702,7 @@ disk_thread(void *arg)
break;
}
reqlog(LOG_DEBUG, 2, -1, hio, "disk: (%p) Got request: ", hio);
logerror = true;
/* Handle the actual request. */
switch (hio->hio_cmd) {
case HIO_READ:
@ -736,14 +737,23 @@ disk_thread(void *arg)
hio->hio_error = 0;
break;
case HIO_FLUSH:
if (!res->hr_localflush) {
ret = -1;
hio->hio_error = EOPNOTSUPP;
logerror = false;
break;
}
ret = g_flush(res->hr_localfd);
if (ret < 0)
if (ret < 0) {
if (errno == EOPNOTSUPP)
res->hr_localflush = false;
hio->hio_error = errno;
else
} else {
hio->hio_error = 0;
}
break;
}
if (hio->hio_error != 0) {
if (logerror && hio->hio_error != 0) {
reqlog(LOG_ERR, 0, hio->hio_error, hio,
"Request failed: ");
}